Simultaneous Determination of Hydrochlorothiazide and Irbesartan from Pharmaceutical Dosage Forms with RP-HPLC

Turk J Pharm Sci. 2020 Oct;17(5):523-527. doi: 10.4274/tjps.galenos.2019.76094. Epub 2020 Oct 30.

Abstract

Objectives: In this work, a simple and rapid liquid chromatographic method for the simultaneous determination of irbesartan (IRBE) and hydrochlorothiazide (HCT) was developed and validated by reverse phase high performance liquid chromatography (RP-HPLC).

Materials and methods: Experimental conditions such as different buffer solutions, various pH values, temperature, composition of the mobile phase, and the effect of flow rate were optimized.

Results: The developed RP-HPLC method for these antihypertensive agents was wholly validated and IRBE was detected in the linear range of 0.1-25 μg mL-1 and HCT was detected in the linear range of 0.25-25 μg mL-1. Moreover, the suggested chromatographic technique was successfully applied for the determination of the drugs in human serum and pharmaceutical dosage forms with limit of detection values of 0.008 μg mL-1 for IRBE and 0.012 μg mL-1 for HCT.

Conclusion: The proposed rapid analysis method of these antihypertensive drugs can be easily used and applied by pharmaceutical companies for which the analysis time is important.

Keywords: HPLC; hydrochlorothiazide; irbesartan; pharmaceutical dosage forms.